correction to my previous message - shouldn't have relied on my memory
on checking my notes, George and Jane Clarke are both buried in grave 917 in Braddan Old Yard South
she died on 10 July 1871 (64), he died on 8 June 1878 (63)
adjacent graves 914, 915 and 916 are all connected (Quirk/Quine/Clarke)
his second wife (Ann Kewin) is buried separately in a different part of Braddan Cemetery